package co.edu.usbcali.museo.presentation.backEndBeans;

import co.edu.usbcali.museo.exceptions.ExceptionMessages;
import co.edu.usbcali.museo.modelo.Autor;
import co.edu.usbcali.museo.modelo.Cuadro;
import co.edu.usbcali.museo.modelo.Museo;
import co.edu.usbcali.museo.modelo.Periodo;
import co.edu.usbcali.museo.modelo.Restauracion;
import co.edu.usbcali.museo.modelo.Sesion;
import co.edu.usbcali.museo.modelo.Tecnica;
import co.edu.usbcali.museo.modelo.Tipoestado;
import co.edu.usbcali.museo.modelo.control.AutorLogic;
import co.edu.usbcali.museo.modelo.control.CuadroLogic;
import co.edu.usbcali.museo.modelo.control.IAutorLogic;
import co.edu.usbcali.museo.modelo.control.ICuadroLogic;
import co.edu.usbcali.museo.modelo.control.IMuseoLogic;
import co.edu.usbcali.museo.modelo.control.IPeriodoLogic;
import co.edu.usbcali.museo.modelo.control.IRestauracionLogic;
import co.edu.usbcali.museo.modelo.control.ISesionLogic;
import co.edu.usbcali.museo.modelo.control.ITecnicaLogic;
import co.edu.usbcali.museo.modelo.control.ITipoestadoLogic;
import co.edu.usbcali.museo.modelo.control.MuseoLogic;
import co.edu.usbcali.museo.modelo.control.PeriodoLogic;
import co.edu.usbcali.museo.modelo.control.RestauracionLogic;
import co.edu.usbcali.museo.modelo.control.SesionLogic;
import co.edu.usbcali.museo.modelo.control.TecnicaLogic;
import co.edu.usbcali.museo.modelo.control.TipoestadoLogic;
import co.edu.usbcali.museo.modelo.dto.MuseoDTO;
import co.edu.usbcali.museo.presentation.businessDelegate.BusinessDelegatorView;
import co.edu.usbcali.museo.utilities.DataPage;
import co.edu.usbcali.museo.utilities.DataSource;
import co.edu.usbcali.museo.utilities.PagedListDataModel;
import co.edu.usbcali.museo.utilities.Utilities;

import com.icesoft.faces.async.render.RenderManager;
import com.icesoft.faces.async.render.Renderable;
import com.icesoft.faces.component.ext.HtmlCommandButton;
import com.icesoft.faces.component.ext.HtmlInputText;
import com.icesoft.faces.component.selectinputdate.SelectInputDate;
import com.icesoft.faces.context.DisposableBean;
import com.icesoft.faces.webapp.xmlhttp.FatalRenderingException;
import com.icesoft.faces.webapp.xmlhttp.PersistentFacesState;
import com.icesoft.faces.webapp.xmlhttp.RenderingException;
import com.icesoft.faces.webapp.xmlhttp.TransientRenderingException;

import java.math.BigDecimal;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Set;
import java.util.TimeZone;
import java.util.Vector;

import javax.faces.application.FacesMessage;
import javax.faces.context.FacesContext;
import javax.faces.event.ValueChangeEvent;
import javax.faces.model.DataModel;


/**
 *
 * @author Zathura Code Generator http://code.google.com/p/zathura,
 *
 */
public class MuseoView extends DataSource implements Renderable, DisposableBean {
    private HtmlInputText txtNombremuseo;
    private HtmlInputText txtCodmuseo;
    private HtmlCommandButton btnSave;
    private HtmlCommandButton btnModify;
    private HtmlCommandButton btnDelete;
    private HtmlCommandButton btnClear;
    private boolean renderDataTable;
    private boolean flag = true;
    private RenderManager renderManager;
    private PersistentFacesState state = PersistentFacesState.getInstance();
    private List<Museo> museo;
    private List<MuseoDTO> museoDTO;

    public MuseoView() {
        super("");
    }

    public String action_clear() {
        txtNombremuseo.setValue(null);
        txtNombremuseo.setDisabled(true);
        txtCodmuseo.setValue(null);
        txtCodmuseo.setDisabled(false);
        btnSave.setDisabled(true);
        btnDelete.setDisabled(true);
        btnModify.setDisabled(true);
        btnClear.setDisabled(false);

        return "";
    }

    public void listener_txtId(ValueChangeEvent event) {
        if ((event.getNewValue() != null) && !event.getNewValue().equals("")) {
            Museo entity = null;

            try {
                Long codmuseo = new Long(txtCodmuseo.getValue().toString());
                entity = BusinessDelegatorView.getMuseo(codmuseo);
            } catch (Exception e) {
                // TODO: handle exception
            }

            if (entity == null) {
                txtNombremuseo.setDisabled(false);
                txtCodmuseo.setDisabled(false);
                btnSave.setDisabled(false);
                btnDelete.setDisabled(true);
                btnModify.setDisabled(true);
                btnClear.setDisabled(false);
            } else {
                txtNombremuseo.setValue(entity.getNombremuseo());
                txtNombremuseo.setDisabled(false);
                txtCodmuseo.setValue(entity.getCodmuseo());
                txtCodmuseo.setDisabled(true);
                btnSave.setDisabled(true);
                btnDelete.setDisabled(false);
                btnModify.setDisabled(false);
                btnClear.setDisabled(false);
            }
        }
    }

    public String action_save() {
        try {
        	String codigoMuseo = txtCodmuseo.getValue().toString(); 
            String nombreMuseo = txtNombremuseo.getValue().toString();
        	
            if(codigoMuseo == null || codigoMuseo.equals("")){
				throw new Exception("El c�digo del museo es de car�cter obligatorio");
			}

			if(Utilities.soloNumeros(codigoMuseo)==false){
				throw new Exception("El c�digo del museo no puede contener letras ni car�cteres especiales");
			}

			if(nombreMuseo == null || nombreMuseo.equals("")){
				throw new Exception("El nombre del museo es de car�cter obligatorio");
			}


			if(Utilities.soloLetras(nombreMuseo)==false){
				throw new Exception("El nombre del museo no permite n�meros ni car�cteres especiales");
			}

			BusinessDelegatorView.saveMuseo(new Long(codigoMuseo), nombreMuseo);

			FacesContext.getCurrentInstance().addMessage("", new FacesMessage("Se ha creado el museo con �xito"));
			action_clear();
		} catch (Exception e) {
			FacesContext.getCurrentInstance()
			.addMessage("", new FacesMessage(e.getMessage()));
		}
		return "";
    }

    public String action_delete() {
        try {
        	String codigoMuseo = txtCodmuseo.getValue().toString();

			if(codigoMuseo == null || codigoMuseo.equals("")){
				throw new Exception("El c�digo del museo es de car�cter obligatorio");
			}

			if(Utilities.soloNumeros(codigoMuseo)==false){
				throw new Exception("El c�digo del museo no puede contener letras ni car�cteres especiales");
			}

			BusinessDelegatorView.deleteMuseo(new Long(codigoMuseo));

			FacesContext.getCurrentInstance().addMessage("", new FacesMessage("Se ha eliminado el museo con �xito"));
		} catch (Exception e) {
			FacesContext.getCurrentInstance()
			.addMessage("", new FacesMessage(e.getMessage()));
		}
		action_clear();
		return "";
    }

    public String action_modify() {
        try {
        	String codigoMuseo = txtCodmuseo.getValue().toString();
			String nombreMuseo= txtNombremuseo.getValue().toString();

			if(codigoMuseo == null || codigoMuseo.equals("")){
				throw new Exception("El c�digo del museo es de car�cter obligatorio");
			}

			if(Utilities.soloNumeros(codigoMuseo)==false){
				throw new Exception("El c�digo del museo no puede contener letras ni car�cteres especiales");
			}

			if(nombreMuseo == null || nombreMuseo.equals("")){
				throw new Exception("El nombre del museo es de car�cter obligatorio");
			}

			if(Utilities.soloLetras(nombreMuseo)==false){
				throw new Exception("El nombre del museo no permite n�meros ni car�cteres especiales");
			}
			
			BusinessDelegatorView.updateMuseo(new Long(codigoMuseo), nombreMuseo);
			FacesContext.getCurrentInstance().addMessage("", new FacesMessage("Se ha modificado el museo con �xito"));
			action_clear();
		} catch (Exception e) {
			FacesContext.getCurrentInstance()
			.addMessage("", new FacesMessage(e.getMessage()));
		}
		return "";
    }

    public String action_modifyWitDTO(Long codmuseo, String nombremuseo)
        throws Exception {
        try {
            BusinessDelegatorView.updateMuseo(codmuseo, nombremuseo);
            renderManager.getOnDemandRenderer("MuseoView").requestRender();
            FacesContext.getCurrentInstance()
                        .addMessage("",
                new FacesMessage(ExceptionMessages.ENTITY_SUCCESFULLYMODIFIED));
        } catch (Exception e) {
            //renderManager.getOnDemandRenderer("MuseoView").requestRender();
            FacesContext.getCurrentInstance()
                        .addMessage("", new FacesMessage(e.getMessage()));
            throw e;
        }

        return "";
    }

    public List<Museo> getMuseo() {
        if (flag) {
            try {
                museo = BusinessDelegatorView.getMuseo();
                flag = false;
            } catch (Exception e) {
                flag = true;
                FacesContext.getCurrentInstance()
                            .addMessage("", new FacesMessage(e.getMessage()));
            }
        }
        return museo;
    }

    public boolean isFlag() {
        return flag;
    }

    public void setMuseo(List<Museo> museo) {
        this.museo = museo;
    }

    public boolean isRenderDataTable() {
        try {
            if (flag) {
                if (BusinessDelegatorView.findTotalNumberMuseo() > 0) {
                    renderDataTable = true;
                } else {
                    renderDataTable = false;
                }
            }

            flag = false;
        } catch (Exception e) {
            renderDataTable = false;
            e.printStackTrace();
        }

        return renderDataTable;
    }

    public DataModel getData() {
        state = PersistentFacesState.getInstance();

        if (onePageDataModel == null) {
            onePageDataModel = new LocalDataModel(pageSize);
        }

        return onePageDataModel;
    }

    /**
    * This is where the Object data is retrieved from the database and
    * returned as a list of objects for display in the UI.
    */
    private DataPage<Museo> getDataPage(int startRow, int pageSize) {
        // Retrieve the total number of objects from the database.  This
        // number is required by the DataPage object so the paginator will know
        // the relative location of the page data.
        int totalNumberMuseo = 0;

        try {
            totalNumberMuseo = BusinessDelegatorView.findTotalNumberMuseo()
                                                    .intValue();
        } catch (Exception e) {
            FacesContext.getCurrentInstance()
                        .addMessage("", new FacesMessage(e.getMessage()));
        }

        // Calculate indices to be displayed in the ui.
        int endIndex = startRow + pageSize;

        if (endIndex > totalNumberMuseo) {
            endIndex = totalNumberMuseo;
        }

        try {
            museo = BusinessDelegatorView.findPageMuseo(sortColumnName,
                    sortAscending, startRow, endIndex - startRow);

            // Remove this Renderable from the existing render groups.
            //leaveRenderGroups();        			
        } catch (Exception e) {
            FacesContext.getCurrentInstance()
                        .addMessage("", new FacesMessage(e.getMessage()));
        }

        // Add this Renderable to the new render groups.
        //joinRenderGroups();
        // Reset the dirtyData flag.
        onePageDataModel.setDirtyData(false);
        // This is required when using Hibernate JPA.  If the EntityManager is not
        // cleared or closed objects are cached and stale objects will show up
        // in the table.
        // This way, the detached objects are reread from the database.
        // This call is not required with TopLink JPA, which uses a Query Hint
        // to clear the l2 cache in the DAO.
        //EntityManagerHelper.getEntityManager().clear();
        flag = true;

        return new DataPage<Museo>(totalNumberMuseo, startRow, museo);
    }

    public DataModel getDataDTO() {
        state = PersistentFacesState.getInstance();

        if (onePageDataModel == null) {
            onePageDataModel = new LocalDataModelDTO(pageSize);
        }

        return onePageDataModel;
    }

    /**
    * This is where the Object data is retrieved from the database and
    * returned as a list of objects for display in the UI.
    */
    private DataPage<MuseoDTO> getDataPageDTO(int startRow, int pageSize) {
        // Retrieve the total number of objects from the database.  This
        // number is required by the DataPage object so the paginator will know
        // the relative location of the page data.
        int totalNumberMuseo = 0;

        try {
            totalNumberMuseo = BusinessDelegatorView.findTotalNumberMuseo()
                                                    .intValue();
        } catch (Exception e) {
            FacesContext.getCurrentInstance()
                        .addMessage("", new FacesMessage(e.getMessage()));
        }

        // Calculate indices to be displayed in the ui.
        int endIndex = startRow + pageSize;

        if (endIndex > totalNumberMuseo) {
            endIndex = totalNumberMuseo;
        }

        try {
            museo = BusinessDelegatorView.findPageMuseo(sortColumnName,
                    sortAscending, startRow, endIndex - startRow);

            if (Utilities.validationsList(museo)) {
                museoDTO = new ArrayList<MuseoDTO>();

                for (Museo museoTmp : museo) {
                    MuseoDTO museoDTO2 = new MuseoDTO();
                    museoDTO2.setCodmuseo(museoTmp.getCodmuseo().toString());
                    museoDTO2.setNombremuseo((museoTmp.getNombremuseo() != null)
                        ? museoTmp.getNombremuseo().toString() : null);
                    museoDTO2.setMuseo(museoTmp);
                    museoDTO2.setMuseoView(this);
                    museoDTO.add(museoDTO2);
                }
            }

            // Remove this Renderable from the existing render groups.
            leaveRenderGroups();
        } catch (Exception e) {
            FacesContext.getCurrentInstance()
                        .addMessage("", new FacesMessage(e.getMessage()));
        }

        // Add this Renderable to the new render groups.
        joinRenderGroups();
        // Reset the dirtyData flag.
        onePageDataModel.setDirtyData(false);
        // This is required when using Hibernate JPA.  If the EntityManager is not
        // cleared or closed objects are cached and stale objects will show up
        // in the table.
        // This way, the detached objects are reread from the database.
        // This call is not required with TopLink JPA, which uses a Query Hint
        // to clear the l2 cache in the DAO.
        //EntityManagerHelper.getEntityManager().clear();
        flag = true;

        return new DataPage<MuseoDTO>(totalNumberMuseo, startRow, museoDTO);
    }

    protected boolean isDefaultAscending(String sortColumn) {
        return true;
    }

    /**
    * This method is called when a render call is made from the server. Render
    * calls are only made to views containing an updated record. The data is
    * marked as dirty to trigger a fetch of the updated record from the
    * database before rendering takes place.
    */
    public PersistentFacesState getState() {
        onePageDataModel.setDirtyData();

        return state;
    }

    /**
    * This method is called from faces-config.xml with each new session.
    */
    public void setRenderManager(RenderManager renderManager) {
        this.renderManager = renderManager;
    }

    public void renderingException(RenderingException arg0) {
        if (arg0 instanceof TransientRenderingException) {
        } else if (arg0 instanceof FatalRenderingException) {
            // Remove from existing Customer render groups.
            leaveRenderGroups();
        }
    }

    /**
    * Remove this Renderable from existing uiCustomerBeans render groups.
    * OnDemandRenderers are named/created using the underlying Customer Number.
    */
    private void leaveRenderGroups() {
        if (Utilities.validationsList(museoDTO)) {
            for (MuseoDTO museoTmp : museoDTO) {
                renderManager.getOnDemandRenderer("MuseoView").remove(this);
            }
        }
    }

    /**
    * Add this Renderable to the new uiCustomerBeans render groups.
    * OnDemandRenderers are named/created using the underlying Customer Number.
    */
    private void joinRenderGroups() {
        if (Utilities.validationsList(museoDTO)) {
            for (MuseoDTO museoTmp : museoDTO) {
                renderManager.getOnDemandRenderer("MuseoView").add(this);
            }
        }
    }

    public void dispose() throws Exception {
    }

    public RenderManager getRenderManager() {
        return renderManager;
    }

    public void setState(PersistentFacesState state) {
        this.state = state;
    }

    public HtmlInputText getTxtNombremuseo() {
        return txtNombremuseo;
    }

    public void setTxtNombremuseo(HtmlInputText txtNombremuseo) {
        this.txtNombremuseo = txtNombremuseo;
    }

    public HtmlInputText getTxtCodmuseo() {
        return txtCodmuseo;
    }

    public void setTxtCodmuseo(HtmlInputText txtCodmuseo) {
        this.txtCodmuseo = txtCodmuseo;
    }

    public HtmlCommandButton getBtnSave() {
        return btnSave;
    }

    public void setBtnSave(HtmlCommandButton btnSave) {
        this.btnSave = btnSave;
    }

    public HtmlCommandButton getBtnModify() {
        return btnModify;
    }

    public void setBtnModify(HtmlCommandButton btnModify) {
        this.btnModify = btnModify;
    }

    public HtmlCommandButton getBtnDelete() {
        return btnDelete;
    }

    public void setBtnDelete(HtmlCommandButton btnDelete) {
        this.btnDelete = btnDelete;
    }

    public HtmlCommandButton getBtnClear() {
        return btnClear;
    }

    public void setBtnClear(HtmlCommandButton btnClear) {
        this.btnClear = btnClear;
    }

    public void setRenderDataTable(boolean renderDataTable) {
        this.renderDataTable = renderDataTable;
    }

    public void setFlag(boolean flag) {
        this.flag = flag;
    }

    public List<MuseoDTO> getMuseoDTO() {
        return museoDTO;
    }

    public void setMuseoDTO(List<MuseoDTO> museoDTO) {
        this.museoDTO = museoDTO;
    }

    public TimeZone getTimeZone() {
        return java.util.TimeZone.getDefault();
    }

    /**
    * A special type of JSF DataModel to allow a datatable and datapaginator
    * to page through a large set of data without having to hold the entire
    * set of data in memory at once.
    * Any time a managed bean wants to avoid holding an entire dataset,
    * the managed bean declares this inner class which extends PagedListDataModel
    * and implements the fetchData method. fetchData is called
    * as needed when the table requires data that isn't available in the
    * current data page held by this object.
    * This requires the managed bean (and in general the business
    * method that the managed bean uses) to provide the data wrapped in
    * a DataPage object that provides info on the full size of the dataset.
    */
    private class LocalDataModel extends PagedListDataModel {
        public LocalDataModel(int pageSize) {
            super(pageSize);
        }

        public DataPage<Museo> fetchPage(int startRow, int pageSize) {
            // call enclosing managed bean method to fetch the data
            return getDataPage(startRow, pageSize);
        }
    }

    private class LocalDataModelDTO extends PagedListDataModel {
        public LocalDataModelDTO(int pageSize) {
            super(pageSize);
        }

        public DataPage<MuseoDTO> fetchPage(int startRow, int pageSize) {
            // call enclosing managed bean method to fetch the data
            return getDataPageDTO(startRow, pageSize);
        }
    }
}
